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authorMarkus Armbruster <armbru@redhat.com>2010-02-10 20:15:29 +0100
committerMarkus Armbruster <armbru@redhat.com>2010-03-16 17:45:34 +0100
commit01e7f18869c9ee4c84793f4a39ec1f5f4128a0aa (patch)
treec9b3e6dc97bfa8981cd7d088b4af1c220857c358 /qemu-option.c
parent0204276bc9108d6a927f4267b87338950a538671 (diff)
qemu-option: Functions to convert to/from QDict
The functions are somewhat restricted. Good enough for the job at hand. We'll extend them when we need more.
Diffstat (limited to 'qemu-option.c')
-rw-r--r--qemu-option.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/qemu-option.c b/qemu-option.c
index ab488e48e..24bb19b76 100644
--- a/qemu-option.c
+++ b/qemu-option.c
@@ -28,6 +28,7 @@
#include "qemu-common.h"
#include "qemu-error.h"
+#include "qemu-objects.h"
#include "qemu-option.h"
/*
@@ -777,6 +778,84 @@ QemuOpts *qemu_opts_parse(QemuOptsList *list, const char *params, const char *fi
return opts;
}
+static void qemu_opts_from_qdict_1(const char *key, QObject *obj, void *opaque)
+{
+ char buf[32];
+ const char *value;
+ int n;
+
+ if (!strcmp(key, "id")) {
+ return;
+ }
+
+ switch (qobject_type(obj)) {
+ case QTYPE_QSTRING:
+ value = qstring_get_str(qobject_to_qstring(obj));
+ break;
+ case QTYPE_QINT:
+ n = snprintf(buf, sizeof(buf), "%" PRId64,
+ qint_get_int(qobject_to_qint(obj)));
+ assert(n < sizeof(buf));
+ value = buf;
+ break;
+ case QTYPE_QFLOAT:
+ n = snprintf(buf, sizeof(buf), "%.17g",
+ qfloat_get_double(qobject_to_qfloat(obj)));
+ assert(n < sizeof(buf));
+ value = buf;
+ break;
+ case QTYPE_QBOOL:
+ strcpy(buf, qbool_get_int(qobject_to_qbool(obj)) ? "on" : "off");
+ value = buf;
+ break;
+ default:
+ return;
+ }
+ qemu_opt_set(opaque, key, value);
+}
+
+/*
+ * Create QemuOpts from a QDict.
+ * Use value of key "id" as ID if it exists and is a QString.
+ * Only QStrings, QInts, QFloats and QBools are copied. Entries with
+ * other types are silently ignored.
+ */
+QemuOpts *qemu_opts_from_qdict(QemuOptsList *list, const QDict *qdict)
+{
+ QemuOpts *opts;
+
+ opts = qemu_opts_create(list, qdict_get_try_str(qdict, "id"), 1);
+ if (opts == NULL)
+ return NULL;
+
+ qdict_iter(qdict, qemu_opts_from_qdict_1, opts);
+ return opts;
+}
+
+/*
+ * Convert from QemuOpts to QDict.
+ * The QDict values are of type QString.
+ * TODO We'll want to use types appropriate for opt->desc->type, but
+ * this is enough for now.
+ */
+QDict *qemu_opts_to_qdict(QemuOpts *opts, QDict *qdict)
+{
+ QemuOpt *opt;
+ QObject *val;
+
+ if (!qdict) {
+ qdict = qdict_new();
+ }
+ if (opts->id) {
+ qdict_put(qdict, "id", qstring_from_str(opts->id));
+ }
+ QTAILQ_FOREACH(opt, &opts->head, next) {
+ val = QOBJECT(qstring_from_str(opt->str));
+ qdict_put_obj(qdict, opt->name, val);
+ }
+ return qdict;
+}
+
/* Validate parsed opts against descriptions where no
* descriptions were provided in the QemuOptsList.
*/